Hi, gloria wood I find that Dulux Natural White can look too stark. Pictured, we have used: White exchange half (which has more of a grey/beige undertone) Lexicon half (for the skirting, doors and trims).

Is the door solid core? If not, a solid door would help somewhat, but would have to check the track can withstand extra weight. We have a couple of very heavy solid hardwood doors in steel frames which run on steel tracks. The bignheavy doors do dampen noise but certainly doesn't eliminate it entirely. Heavy drapery, rugs, soft furnishings, tapestries and large textile wall hangings will help to absorb sound from within the room, but still won't entirely eliminate it. If you don't already have carpet runners or rugs in your kitchen, adding some will also will help. Same goes for any other rooms which adjoin the music room/library. I knew a couple who soundproofed their small music room when they built their house. Their son played drums. As I recall, they used a special acoustic plasterboard for the walls, and the floor was carpeted. I think it helped considerably. there are also acoustic panels/tiles that can be installed on the ceiling, but this may be more trouble than it's worth. I'm not sure but the installation might be something like a suspended ceiling.

I have to put my hand up again I love builders and they are the to go to guys to build things but designers they are not, if they are given a plan already designed they have the know how to make it happen. My problem with your house is that when the last extensions were done the family room ended up in the middle of the house surrounded by other rooms, this could have made everything quite dark and closed in. I have removed bed 2 for this reason so that the space can be opened up for more usable area plus a larger entrance and more light inside. Bed 2 can be replaced with a much better master suite using the living and dining to allow an ensuite and WIR, this to be done when needed and money allows for fit out of the ensuite but until then it's a wonderful Master bedroom. For now the existing dining can be opened up or not to the narrow passage , to be used for kids play room/study or guests. Changing the entrance to a bigger wider one gives great street appeal and easier access whether it be by stairs or ramp. I prefer the laundry where it is close to the bedrooms, this can have another much needed WC and even a shower using the existing plumbing from the bathroom next door. This laundry bathroom should be setup with possible wheel chair use in mind, The washing machine and dryer stacked and installed into a cupboard using one of or similar easy ducting systems which uses a 6" flexable tubing up into the ceiling and across and out down through the eaves. cheap and easy, no expensive dryer required. Also the current access to the bedrooms is in the wrong position making it a hike from the entrance and kitchen to the WC, changing it to the other end makes for better access. Importantly the kitchen to remain in the same position but removing walls to open up and adding a 1800 x 900 x 3 x 600 pot drawers for great storage, The 600 Pantry will double it's storage by simply adding drawers. plus so easy to find things Try to re use as many doors and windows as possible and making them as large as possible in the family kitchen space. Lovely sliding doors from the current living room verandah adds a special touch for either living or bedroom, with the entrance moved that verandah is now a usable space for chairs and small table. Your builder is the one to deal with any load bearing wall situations and I'am hoping by retaining the dining room wall or part there of will still work cheers

They are all beautiful designs and materials; however, I would always need to test how a handle feels in my hand as it will get a lot of use and for a period of years. Personally, I prefer a more ergonomic handle, one that is rounded and feels smoother in my hand when operating. That said, if the squared-off edge feels fine to you and you see yourself living with the handle on all internal doors, then it comes down to which appeals to you more than the others.